Global Patent Index - EP 1320264 A2

EP 1320264 A2 2003-06-18 - Method and apparatus for encoding and decoding an orientation interpolator

Title (en)

Method and apparatus for encoding and decoding an orientation interpolator

Title (de)

Verfahren und Vorrichtung zur Kodierung und Dekodierung von Schlüsselwerten eines Orientierungsinterpolators

Title (fr)

Méthode et appareil pour le codage et le décodage d'un interpolateur d'orientation

Publication

EP 1320264 A2 (EN)

Application

EP 02258162 A

Priority

  • KR 20020073044 A
  • US 33313001 P
  • US 33454101 P
  • US 34210101 P
  • US 36959702 P

Abstract (en)

A method and an apparatus for encoding and decoding an orientation interpolator indicating the locations of keyframes on a temporal axis and the rotation of an object in each of the keyframes are provided. The apparatus for encoding an orientation interpolator includes an break point extractor which extracts, from a first animation path constituted by an orientation interpolator input thereinto, a minimum number of break points, which can bring about an error of no greater than a predetermined error limit between the first animation path and a second animation to be generated by the extracted break points, a key data encoder which encodes key data input from the break point extractor, and a key value data encoder which encodes key value data input from the break point extractor by generating rotational differential data, by which the object is rotationally transformed by as much as a difference between a rotational transformation value of a current keyframe and a rotational transformation value of a previous keyframe. <IMAGE>

IPC 1-7 (main, further and additional classification)

H04N 7/24; G06T 9/00; H04N 7/26

IPC 8 full level (invention and additional information)

G06T 9/00 (2006.01); G06F 7/38 (2006.01); G06F 17/22 (2006.01); G06T 13/20 (2011.01); H03M 7/30 (2006.01); H03M 7/36 (2006.01); H03M 7/48 (2006.01); H04N 7/24 (2006.01); H04N 7/26 (2006.01); H04N 7/32 (2006.01); H04N 7/36 (2006.01); H03M 7/40 (2006.01)

CPC (invention and additional information)

H04N 19/25 (2014.11); H04N 19/103 (2014.11); H04N 19/12 (2014.11); H04N 19/126 (2014.11); H04N 19/13 (2014.11); H04N 19/136 (2014.11); H04N 19/14 (2014.11); H04N 19/46 (2013.01); H04N 19/70 (2013.01); H03M 7/30 (2013.01); H03M 7/40 (2013.01)

Designated contracting state (EPC)

BE DE ES FR GB NL

DOCDB simple family

EP 1320264 A2 20030618; EP 1320264 A3 20050601; EP 1320264 B1 20120321; CN 1187716 C 20050202; CN 1277239 C 20060927; CN 1294540 C 20070110; CN 1428742 A 20030709; CN 1438613 A 20030827; CN 1441387 A 20030910; EP 2278808 A1 20110126; EP 2278808 B1 20121010; ES 2381777 T3 20120531; JP 2003248839 A 20030905; JP 3905834 B2 20070418; KR 100480787 B1 20050407; KR 100499135 B1 20050704; KR 100537500 B1 20060109; KR 100543697 B1 20060120; KR 100552665 B1 20060220; KR 100552666 B1 20060220; KR 100552710 B1 20060220; KR 100561875 B1 20060317; KR 20030043620 A 20030602; KR 20030043621 A 20030602; KR 20030043622 A 20030602; KR 20030043634 A 20030602; KR 20030043655 A 20030602; KR 20030043657 A 20030602; KR 20030043690 A 20030602; KR 20050109413 A 20051121; US 2003128883 A1 20030710; US 7446771 B2 20081104